Methods and systems for an adaptive multi-phase angiography scan

Abstract

Methods and systems are provided for adaptive scan control. In one embodiment, a method includes processing acquired projection data of a monitoring area of a subject to measure a contrast signal of a contrast agent delivered to the subject, determining a hemodynamic marker of the subject based on the contrast signal, generating a scan prescription based on the determined hemodynamic marker of the subject, and performing a multi-phase contrast scan according to the scan prescription.

Description

FIELD[0001]Embodiments of the subject matter disclosed herein relate to non-invasive diagnostic imaging, and more particularly, to real-time adaptive contrast imaging.BACKGROUND[0002]Non-invasive imaging technologies allow images of the internal structures of a patient or object to be obtained without performing an invasive procedure on the patient or object. In particular, technologies such as computed tomography (CT) use various physical principles, such as the differential transmission of x-rays through a target volume, to acquire image data and to construct tomographic images (e.g., three-dimensional representations of the interior of the human body or of other imaged structures).[0003]For emergency room (ER) stroke management, reducing an amount of time before a course of treatment is determined may increase favorable patient outcomes. For every minute a large vessel ischemic stroke is untreated, the average patient loses 1.9 million neurons. For each hour in which a treatment ...

AI Technical Summary

Benefits of technology

The patent describes a method for measuring the delivery of a contrast agent to a subject by processing projection data of a monitoring area. The method includes determining a hemodynamic marker of the subject, generating a scan prescription based on the marker, and performing a multi-phase contrast scan according to the prescription. The technical effect of the patent is to provide a reliable and accurate way to measure the delivery of a contrast agent to a subject, which can be useful in various medical applications such as diagnostic imaging.

Problems solved by technology

However, an emergency physician may have no prior knowledge (NPK) of the patient's hemodynamics, including whether the patient is known to have atrial fibrillation, or the patient's age.

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